FLEXIBLE MICROFIBRILLATED FILM FORMATION

    公开(公告)号:CA2994388A1

    公开(公告)日:2017-03-23

    申请号:CA2994388

    申请日:2016-09-16

    Applicant: STORA ENSO OYJ

    Abstract: A method of manufacturing a film comprising microfibrillated cellulose,, wherein the method comprises the steps of: providing a first suspension comprising microfibrillated cellulose, having a dry content of from 0.2 to 2.0 %, wherein the first suspension has a first Schopper-Riegler (SR) value; forming a first web of said suspension; at least partly dewatering said first web; applying a second suspension comprising microfibrillated cellulose, and/or fines and/or fibers onto a surface of said formed and at least partially dried first web, wherein the second suspension has a second Schopper- Riegler value which is higher than said first Schopper-Riegler value, thereby forming a film.

    Proceso para tratamiento de celulosa y celulosa tratada según el proceso

    公开(公告)号:ES2596216T3

    公开(公告)日:2017-01-05

    申请号:ES12785526

    申请日:2012-05-11

    Applicant: STORA ENSO OYJ

    Abstract: Proceso de purificación, tal como empobrecimiento de sal/ion y/o empobrecimiento de azúcar libre, preferiblemente usando deshidratación, de una suspensión que comprende celulosa, tal como celulosa microfibrilada, en donde el proceso comprende las siguientes etapas: - proporcionar una suspensión que comprende celulosa y líquido, - someter la suspensión a un campo eléctrico, que induce a fluir al líquido de la suspensión, - separar el líquido de la celulosa, obteniendo así una suspensión empobrecida en líquido, - añadir un líquido de lavado, tal como un disolvente orgánico, a la suspensión empobrecida en líquido, - someter la suspensión empobrecida en líquido a un campo eléctrico, que induce a fluir al líquido de lavado de la suspensión y - separar el líquido de lavado de la celulosa, obteniendo así una celulosa purificada.

    MANUFACTURING METHOD FOR A FILM OR PRODUCT COMPRISING AN AMPHIPHILIC POLYMER

    公开(公告)号:CA2988517A1

    公开(公告)日:2016-12-29

    申请号:CA2988517

    申请日:2016-06-21

    Applicant: STORA ENSO OYJ

    Abstract: A method for manufacturing of a film, wherein said film is manufactured in a paper or paper board machine, wherein the method comprises the steps of providing a solution of a nanofibrillated poly-saccharide, wherein said solution comprises from 0.01 to 50 weight-% nanofibrillated polysaccharide, and wherein the nanofibrillated polysaccharide is any one of microfibrillated cellulose, nanofibrillated cellulose, nanocrystalline cellulose, microcrystalline cellulose, cellulose whiskers and cellulose derivative or a combination or mixture thereof, wherein the method further comprises the steps of providing an amphiphilic polymer; and providing a mixture of said amphiphilic polymer and said solution comprising nanofibrillated polysaccharide, whereby an intermediate solution is obtained; bringing said intermediate solution into a foam; providing said foam in the paper or board machine.

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